jayleg4450 jayleg4450

07-02-2024
Physics

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An open organ pipe of length l is sounded together with another open organ pipe of length l + x in their fundamental tones. Speed of sound in air is v. The beat frequency heard will be (x ≪ l)
A. vx/4l²
B. vl¹/2x
C. vx/2l²
D. vx²/2l

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